Tuesday, Feb 19, 2013 - 7:00 PMThe Duchess presides over the Chatsworth International Horse Trials, 75 fences over a 300-acre course, which in 2011 is an official qualifier for the London Olympics. Then the third annual Chatsworth flower festival, "Florabundance," is complicated by unseasonably warm spring weather and attacks on the plants by the estate's pheasants, rabbits and mice. Both these events provide income to help support the upkeep of the house. Part 2 of 3G